Ubuntu – Is there a way to copy installed application into another OS

Most of your display and application preferences are in your home directory (/home/<yourlogin>).

Coping this directory between your desktop and laptop computer should give you 80% of what you want. Just tar your home on the desktop, copy the archive and untar it. (scp would loose symlink and other things)

For the remaining 20%, I would consider a fresh install because laptops need special tuning. From an energy saving point of view, your battery will last longer when the system is tuned for that computer.

The icons you see are from the package libreoffice-style-oxygen.

Others you can install, including some that should be installed by default, are:

1. libreoffice-style-crystal
2. libreoffice-style-galaxy
3. libreoffice-style-hicontrast
4. libreoffice-style-human
5. libreoffice-style-tango ( and last but not least, the new and probably the best ;-)
6. libreoffice-style-sifr

These can be found in Software Center by entering "libreoffice-style" in the Search box (at the top-right corner).

You can select them from the LO menu:

Tools > Options... > View > User Interface : Icon size and style

Uninstalling a "libreoffice-style-*" package removes that icon style from those options.